Valve carrier ring for self-closing dispensing valve

A valve assembly comprising a valve carrier ring and a self-closing dispensing valve,

• the self-closing valve comprising a valve head having a dispensing orifice, a peripheral retaining portion and a connecting portion interconnecting the valve head and the retaining portion, wherein the retaining portion is formed as a ring having a circumferential surface having a tapering shape,
• the valve carrier ring comprising an annular seat portion comprising a support surface for supporting the retaining portion of the valve and a circumferential wall located radially outwards of the support surface and extending coaxially with the support surface, wherein the circumferential wall has a preformed radial protrusion adapted to extend over the retaining portion of the valve, thereby providing a preliminary retention of the retaining portion in the seat portion,
• wherein the circumferential surface of the retaining portion of the self-closing valve in an assembled state faces the circumferential wall of the carrier ring,
• wherein one or more snap beads are formed at a radial outer side of the valve carrier ring adapted to cooperate with snap means of a closure body to provide a snap connection between the valve carrier ring and the closure body,
• wherein the radial protrusion is constituted by a flexible inwardly inclined extremity of the circumferential wall,
• wherein a radially most inwards edge of the inclined extremity of the circumferential wall of the carrier ring defines a circular passage for inserting the retaining portion in the seat portion, the circular passage having a diameter, wherein a smallest outer diameter of the tapering circumferential surface is smaller than or corresponds substantially with the diameter of said circular passage, and wherein a largest outer diameter of the tapering circumferential surface is larger than the diameter of said circular passage.

A closure assembly for a container, the closure assembly comprising a closure body attachable or attached to a container and a valve assembly comprising a valve carrier ring and a self-closing dispensing valve,

• the self-closing valve comprising a valve head having a dispensing orifice, a peripheral retaining portion and a connecting portion interconnecting the valve head and the retaining portion, wherein the retaining portion is formed as a ring having a circumferential surface, having a tapering shape,
• the valve carrier ring comprising an annular seat portion comprising a support surface for supporting the retaining portion of the valve and a circumferential wall located radially outwards of the support surface and extending coaxially with the support surface, wherein the circumferential wall has a preformed radial protrusion adapted to extend over the retaining portion of the valve, thereby providing a preliminary retention of the retaining portion in the seat portion,
• wherein the circumferential surface of the retaining portion of the self-closing valve in an assembled state faces the circumferential wall of the carrier ring,
• wherein one or more snap beads are formed at a radial outer side of the valve carrier ring,
• wherein the radial protrusion is constituted by a flexible inwardly inclined extremity of the circumferential wall,
• wherein a radially most inwards edge of the inclined extremity of the circumferential wall of the carrier ring defines a circular passage for inserting the retaining portion in the seat portion, the circular passage having a diameter, wherein a smallest outer diameter of the tapering circumferential surface is smaller than or corresponds substantially with the diameter of said circular passage, and wherein a largest outer diameter of the tapering circumferential surface is larger than the diameter of said circular passage, and
• wherein the closure body comprises a deck with a dispensing passage and snap means arranged on an inner side of the closure body around the dispensing passage, wherein the snap beads of the valve carrier ring constitute a snap connection with the snap means of the closure body, and wherein the closure body has an engagement collar coaxial with the dispensing passage, said engagement collar being arranged and configured to abut with an end thereof against the retaining portion of the valve when the carrier ring is snapped in the closure body, thereby urging the retaining portion of the valve in a sealing engagement with the seat portion of the carrier ring.